There is no basis for assessing her order of birth among the other known daughters of the king. Richardum..Henricum, adding that William succeeded to regno Angli.
An undated manuscript names "Mathildem Anglorum reginam, nostri cnobii fondatricem, Adilidem, Mathildem, Constantiam, filias eius" heading the list of the names of nuns at the abbey Orderic Vitalis names Adelizam et Constantiam, Ceciliam et Adalam as the daughters of Willermus Normanni dux and his wife Mathildem Balduini ducis Flandrensium filiam, neptem..sorore Henrici regis Francorum Orderic Vitalis records that at Fcamp in 1075 King William I entered Ceciliam...filiam suam as a nun at Caen, adding that she later succeeded "Mathilde abbatissa" (who had been abbess for 47 years) and governed as abbess for nearly 14 years until she died III Id Jul 1127Guillaume of Jumiges records that Duke Guillaume and his wife Balduinum Flandri comitem...filiam regali ex genere descendente... Orderic Vitalis names Rotbertum..Ricardum, Willermum et Henricum as the sons of Willermus Normanni dux and his wife Mathildem Balduini ducis Flandrensium filiam, neptem..sorore Henrici regis Francorum His reign was characterised by bitter rivalry with his brother Robert in Normandy, even harsher imposition of Norman rule in England than by his father, and growing resentment of his ways among the nobility.
She founded the abbey of la Trinit at Caen, as confirmed by an undated manuscript which records the death "pridie nonas julias" of "abbatissam Mathildem" in the 54th year in which she held the position and names "Mathildem Anglorum reginam, nostri cnobii fondatricem, Adilidem, Mathildem, Constantiam, filias eius" heading the list of the names of nuns at the abbey.
Her husband appointed Mathilde as his regent in Normandy when he left to invade England, and again after he returned to England after visiting Normandy in 1067: Orderic Vitalis records that, when King William returned to England, , he appointed Mathildi conjugi su filioque suo Rodberto adolescenti to govern Normandy (principatum Neustri), adding that the king took with him Rogerium de Monte-Gomerici whom he had appointed as tutorem Normanni..sua conjuge when he had left for England for the first time.
The only near certainty is that it would presumably have been the oldest available daughter who was betrothed to Harold.
Matthew Paris does not name her but lists her fourth among the daughters of King William, while distinguishing her from the fifth daughter betrothed to "Aldefonso Galici regi", which, if the order of names is significant, indicates that Adelaide was older than her two named sisters.
Notable among these are:(Chteau de Falaise, Normandy [1027/28]-Rouen, Prior de Saint-Gervais , bur Caen, Abb de Saint-Etienne). Willelmum filium suum was born apud Falesiam Deville suggests that Guillaumes birthdate can be fixed more precisely to [mid-1027], taking into account that his father Robert occupied Falaise immediately after the death of his father Duke Richard II (), not wishing to accept the authority of his older brother Duke Richard III, but that Roberts stay was short as the two brothers were reconciled soon after, it being reasonable to suppose that Roberts relationship with Guillaumes mother occurred soon after his arrival at Falaise It appears that Edward "the Confessor" King of England acknowledged Guillaume as successor to the English throne on several occasions, maybe for the first time during his visit to England in 1051 which is recorded in the Anglo-Saxon Chronicle.
Harold's visit to Normandy, and swearing allegiance to Duke William, is recorded by William of Jumiges.
The genealogy of the kings of England after the Norman Conquest of 1066 is so well known that it needs little introduction.
What is surprising is that, despite the multiplicity of sources and vast amount of collective study effort, there are still areas where doubt persists.
According to Eadmer of Canterbury, the reason for his visit was to negotiate the release of his brother Wulfnoth and nephew Haakon, both of whom had been hostages in Normandy since 1051.
On his deathbed, King Edward "the Confessor" bequeathed the kingdom of England to Harold.